Patent US2894683A successfully refreshed from Google Patents.
US2894683A
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US
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Assignee: —
•
Filing: —
•
Granted: 1959-07-14
•
Expires: 1976-07-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:44
CPC Classifications
G; G06; G06G; G06G3/00; H; H01; H01H; H01H19/00; H01H19/02; H01H19/10; H01H19/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2289055A
Cited
US2545550A
Cited
US2127733A
Cited
US2113229A
Cited
US2302769A
Cited
US2480981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |