Patent US3548411A successfully refreshed from Google Patents.
US3548411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable goggles for helmet
Assignee: United States Department of the Navy
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Filing: 1969-02-26
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Granted: 1970-12-22
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Expires: 1989-02-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Barstow
- 👤 Paul Larson
- 👤 Udo W Salomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:58
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/228; A42B3/0406; A42B3/042; A42B3/185
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |