Patent US3722071A successfully refreshed from Google Patents.
US2390632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fitting insulating cover
Assignee: E.J. Bartells Co
•
Filing: 1942-05-16
•
Granted: 1945-12-11
•
Expires: 1962-05-16
Abstract
No abstract record available.
Inventors
- 👤 Oliver A Abrams
- 👤 Schubert Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:55
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/16; F16L59/161; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1031
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) | 1948-12-10 | 1949-06-11 | 1949-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-10 | 1953-06-11 | 1953-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-10 | 1957-06-11 | 1957-12-11 | $7700.00 | Window Closed / Lapsed |