US2872976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cord lock fitting
Assignee: LORENTZEN HARDWARE Manufacturing CORP
•
Filing: 1953-11-27
•
Granted: 1959-02-10
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Hans K Lorentzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:56
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/324; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US287081A
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US624559A
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GB190223944A
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US828906A
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US1661045A
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US2198187A
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US2243910A
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US2408333A
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US2507610A
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US2478994A
Cited
US2677419A
Cited
CH280122A
Cited
US2696879A
Cited
US2670038A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |