US3198754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aziridine derivatives and polymers thereof
Assignee: 3M Co
•
Filing: 1962-01-02
•
Granted: 1965-08-03
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Ahlbrecht
- 👤 Thomas S Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/18; C08; C08G; C08G73/00; C08G73/02; C08G73/0233; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2189
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
10 words
A SOLID POLYMER COMPRISING RECURRING UNITS REPRESENTED BY THE FORMULA:
Claim 4
Dependent Claim
10 words
A SOLID POLYMER COMPRISING RECURRING UNITS REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |