US2953629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porcelain condenser bushing
Assignee: Individual
•
Filing: 1957-11-07
•
Granted: 1960-09-20
•
Expires: 1977-11-07
Abstract
No abstract record available.
Inventors
- 👤 Grover W Lapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28; H01B17/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1129466A
Cited
US1526023A
Cited
GB309884A
Cited
US1750750A
Cited
US2288969A
Cited
US2776332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |