Patent US3828753A successfully refreshed from Google Patents.
Patent US1438475A successfully refreshed from Google Patents.
Patent US2378739A successfully refreshed from Google Patents.
US2378739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer for polyvinyl chloride compositions
Assignee: Goodrich Corp
•
Filing: 1941-10-15
•
Granted: 1945-06-19
•
Expires: 1961-10-15
Abstract
No abstract record available.
Inventors
- 👤 George H Taft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:31
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-06-18 | 1948-12-18 | 1949-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-18 | 1952-12-18 | 1953-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-18 | 1956-12-18 | 1957-06-19 | $7700.00 | Window Closed / Lapsed |