US3154829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer cover locking device
Assignee: HK Porter Co Inc
•
Filing: 1962-09-28
•
Granted: 1964-11-03
•
Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 William M Pahel
- 👤 Rudolph E Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:55
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F16J13/06; F16J13/065; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR370408A
Cited
US2269664A
Cited
GB609587A
Cited
US2548249A
Cited
US2675253A
Cited
DE954384C
Cited
US2895197A
Cited
US2874441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |