Patent US2601680A successfully refreshed from Google Patents.
US2601680A
Expired / Lapsed
US
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Protective head covering with vision portions
Assignee: Individual
•
Filing: 1950-06-02
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Granted: 1952-07-01
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Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 David I Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:14
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/04; A42B1/045; A41; A41D; A41D2200/00; A41D2200/20; Y; Y10; Y10S; Y10S2/00; Y10S2/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |