US2673349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible hat
Assignee: Individual
•
Filing: 1951-02-28
•
Granted: 1954-03-30
•
Expires: 1971-02-28
Abstract
No abstract record available.
Inventors
- 👤 Hugh L Key
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/201; Y; Y10; Y10S; Y10S2/00; Y10S2/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US606982A
Cited
USRE17268E
Cited
US917210A
Cited
US1581445A
Cited
US1560073A
Cited
US2100651A
Cited
US2418069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |