US2840262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure seal
Assignee: Vinters Armstrongs Ltd
•
Filing: 1954-07-06
•
Granted: 1958-06-24
•
Expires: 1974-07-06
Abstract
No abstract record available.
Inventors
- 👤 Learmonth William
- 👤 Cooke Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US658588A
Cited
US1151614A
Cited
US1635482A
Cited
US1732235A
Cited
US1800085A
Cited
US2114381A
Cited
US2348293A
Cited
US2371633A
Cited
US2476074A
Cited
US2504936A
Cited
US2421847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |