US2997734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge
Assignee: Individual
•
Filing: 1955-11-23
•
Granted: 1961-08-29
•
Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Dyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:39
CPC Classifications
E; E05; E05D; E05D5/00; E05D5/10; E05D5/12; E05D5/125; E05D5/14; E05D2005/145; E05D5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE97341C
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DE130116C
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US104316A
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US2734223A
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US1636639A
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US1808335A
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US1782582A
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CH164612A
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US2797433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |