US2921607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiring duct
Assignee: Individual
•
Filing: 1957-02-11
•
Granted: 1960-01-19
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jack E Caveney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0437; H02G3/045; H02G3/0406; H02G3/0418; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US749391A
Cited
US1094109A
Cited
US1344728A
Cited
US1874369A
Cited
US1906874A
Cited
US2148892A
Cited
US2137536A
Cited
US2259151A
Cited
GB549840A
Cited
GB685964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |