Patent US2866977A successfully refreshed from Google Patents.
US2866977A
Expired / Lapsed
US
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Headgear with stabilizing crown rigging
Assignee: Individual
•
Filing: 1955-08-25
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Granted: 1959-01-06
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Expires: 1975-08-25
Abstract
No abstract record available.
Inventors
- 👤 Walter S Finken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:26
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1077833A
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US1256532A
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US1294863A
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US2306362A
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US2359387A
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US2398561A
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US2536467A
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US2585937A
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US2619638A
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US2741768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |