US2899512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
burch
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/001; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H5/00; H01H5/04; H01H5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1925612A
Cited
US1879349A
Cited
US1918491A
Cited
US1960020A
Cited
US2153297A
Cited
US2537682A
Cited
US2573588A
Cited
US2565790A
Cited
US2710323A
Cited
US2630504A
Cited
US2644052A
Cited
US2697145A
Cited
US2825785A
Cited
US2750463A
Cited
US2819362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |