Patent US2299109A successfully refreshed from Google Patents.
US2299109A
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Oxygen regulating device
Assignee: Bendix Aviation Corp
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Filing: 1937-09-18
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Granted: 1942-10-20
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Expires: 1957-09-18
Abstract
No abstract record available.
Inventors
- 👤 Rand Henry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; Y; Y10; Y10S; Y10S73/00; Y10S73/11; Y10T; Y10T436/00; Y10T436/20; Y10T436/207497; Y10T436/209163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |