Q. Is the following the correct way to punctuate the date?

Period between June 23, 2003 and March 19, 2004

Q. When I encounter a restrictive clause with multiple elements, do I put a comma at the end of the last element? For example: The woman who was blonde, green-eyed, and slim said hello to me. Or is it: The woman who was blonde, green-eyed, and slim, said hello to me.

Q. Do you perceive any difference in meaning in the following two sentences? (1) Communication patterns must be created so that parallel transmissions are possible when using the RS formula or the DL method, as shown in figure 1. (2) Communication patterns must be created so that parallel transmissions are possible when using the RS method or the DL method as shown in figure 1.

Q. Please, please end a debate I recently had with my European friend over a comma issue as follows: “The Catalan archaeologist, Pere de Palol, started the excavations again.” I feel that it is necessary to delete the commas before and after the name. With them, wouldn’t the sentence imply that there is only one Catalan archaeologist? The text is going to appear on a plaque in a museum.

Q. When I began learning English grammar from the nuns in or about 1951, I was taught to NEVER use a comma either after or before independent clauses or compound sentences. Did the rules of English grammar and punctuation change while I was in that three-week coma in 1965 or in the years that it took to regain my basic and intellectual functioning before I returned to teaching?

Q. When do you use a comma before “because”? I feel that I never need to put a comma before “because” because any information after it is necessary. What are your thoughts?

Q. I am having a dispute with a local store regarding their return policy, worded as such: “[Retailers] will refund the purchase price of any previewed, defective or mislabeled products returned within 30 days, provided you have the original receipt.” The retailers claim that since the serial comma is not employed, “previewed” becomes a stipulation of both “defective” and “mislabeled.” Under their interpretation of the policy this is equivalent to saying “any previewed defective or previewed mislabeled products.” This is especially important to me, since I purchased a new, defective product from them.

Q. Is there a rule that I’ve missed somewhere that says there should always be a comma before the word “then” if “then” is at the end of a sentence? For example: It’s settled, then. Sometimes it sounds fine; other times it seems more like an obstacle to the flow of the sentence. But a rule is a rule, so if you can point me to the correct section in CMOS, I’ll stop turning up my nose at this construction.

Q. I write professional resumes, and I have a question about the use of a comma in a sentence with including. My proofer has begun inserting a comma prior to including followed by a list: “Managed a variety of projects, including joint, combined, and contingency exercises.” Should this comma be omitted?

Q. If you write “In the opening of Raymond Chandler’s 1940 novel Farewell, My Lovely . . . ,” ought there to be a comma after novel, as it was his only novel published that year and so what follows is a nonrestrictive appositive? Or does that seem too clunky?