Patent US2879010A successfully refreshed from Google Patents.
US2879010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous plastic pirn
Assignee: Westinghouse Electric Corp
•
Filing: 1956-01-27
•
Granted: 1959-03-24
•
Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:51
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2668020A
Cited
US2679989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |