US3544541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizable compositions containing aziridinyl compound and basic compound
Assignee: Polysar Ltd
•
Filing: 1968-03-18
•
Granted: 1970-12-01
•
Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Edwards
- 👤 Premysl Thomas Dolezal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
C; C08; C08K; C08K13/00; C08K13/02; C08C; C08C19/00; C08C19/30; C08C19/32; C08F; C08F236/00; C08F236/02; C08F236/04; C08K3/00; C08K3/10; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |