Patent US2906262A successfully refreshed from Google Patents.
US2906262A
Expired / Lapsed
US
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Self contained breathing apparatus
Assignee: Individual
•
Filing: 1957-04-25
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Granted: 1959-09-29
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Expires: 1977-04-25
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Braunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:23
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/10; B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE680053C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |