Patent US3204775A successfully refreshed from Google Patents.
US3204775A
Expired / Lapsed
US
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Support for self-contained breathing apparatus
Assignee: Individual
•
Filing: 1963-11-26
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Granted: 1965-09-07
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Gary L Smith
- 👤 Weese Harry R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:52
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1494916A
Cited
US2029707A
Cited
US2406334A
Cited
US2696963A
Cited
US2915799A
Cited
US2888227A
Cited
AT214297B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |