US2702928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable key holder
Assignee: Sinko Manufacturing & Tool Co
•
Filing: 1951-06-15
•
Granted: 1955-03-01
•
Expires: 1971-06-15
Abstract
No abstract record available.
Inventors
- 👤 Howard O Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:10
CPC Classifications
A; A44; A44B; A44B15/00; A44B15/002; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902; Y10T24/3904; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US878739A
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US1156345A
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US1042918A
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US1284972A
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US1266365A
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US1368665A
Cited
US1504761A
Cited
US1965882A
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US2065843A
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US2051591A
Cited
US2112247A
Cited
US2599660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |