US3332938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylated lactams and process of preparation
Assignee: GAF Chemicals Corp
•
Filing: 1965-05-11
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Granted: 1967-07-25
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Expires: 1985-05-11
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Mayhew
- 👤 Bosniack David
- 👤 Grosser Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:42
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/267; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/76
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
ALKYLATED LACTAMS SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING FORMULAE:
Claim 2
Dependent Claim
13 words
ALKYLATED LACTAMS SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING FORMULAE:
Claim 3
Dependent Claim
34 words
THE PROCESS OF PREPARING ALKYLATED LACTAMS WHICH COMPRISES HEATING FROM 0.01 TO 10 MOLES OF AN X-OLEFIN OF FROM 2 TO 100 CARBON ATOMS WITH 1 MOLE OF A LACTAM HAVING THE FOLLOWING FORMULA:
Claim 4
Dependent Claim
34 words
THE PROCESS OF PREPARING ALKYLATED LACTAMS WHICH COMPRISES HEATING FROM 0.01 TO 10 MOLES OF AN X-OLEFIN OF FROM 2 TO 100 CARBON ATOMS WITH 1 MOLE OF A LACTAM HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US3000878A
Cited
US3065237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |