US3346566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing metal salts of lactams
Assignee: GAF Chemicals Corp
•
Filing: 1965-11-30
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Granted: 1967-10-10
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Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Max E Chiddix
- 👤 Wiley E Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:27
CPC Classifications
C; C07; C07D; C07D201/00; C07D201/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE PROCESS OF PREPARING METAL SALTS OF LACTAMS WHICH COMPRISES HEATING AT REFLUX 1 EQUIVALENT WEIGHT OF A METAL ALKOXIDE OF METALS OF GROUPS 1 AND 2 OF THE PERIODIC TABLE WHEREIN THE ALKYL GROUP OF THE ALKOXIDE CONTAINS FROM 1 TO 5 CARBON ATOMS WITH A MOLECULAR WEIGHT OF A LACTAM HAVING THE FORMULA:
Claim 2
Dependent Claim
55 words
THE PROCESS OF PREPARING METAL SALTS OF LACTAMS WHICH COMPRISES HEATING AT REFLUX 1 EQUIVALENT WEIGHT OF A METAL ALKOXIDE OF METALS OF GROUPS 1 AND 2 OF THE PERIODIC TABLE WHEREIN THE ALKYL GROUP OF THE ALKOXIDE CONTAINS FROM 1 TO 5 CARBON ATOMS WITH A MOLECULAR WEIGHT OF A LACTAM HAVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |