US1282133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode-holder for search-lights.
Assignee: Individual
•
Filing: 1918-03-13
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Granted: 1918-10-22
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Expires: 1938-03-13
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:59
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/073; H01J61/0732; H01J61/52; H01J61/523; H05; H05B; H05B31/00; H05B31/003; H05B31/0036
Claims Analysis
Total Claims: 0
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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) | 1921-10-21 | 1922-04-22 | 1922-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-10-21 | 1926-04-22 | 1926-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-10-21 | 1930-04-22 | 1930-10-22 | $7700.00 | Window Closed / Lapsed |