US2762200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respirator pumping apparatus
Assignee: CONITECH Ltd
•
Filing: 1952-06-24
•
Granted: 1956-09-11
•
Expires: 1972-06-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Huxley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:27
CPC Classifications
A; A61; A61H; A61H31/00; A61H31/02; A61H31/004; A61H31/005; A61H31/006; F; F04; F04B; F04B33/00; F04B45/00; F04B45/02; F04B9/00; F04B9/02; A61H2201/00; A61H2201/12; A61H2201/1238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2292527A
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US2368562A
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US2309470A
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US2327980A
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US2348538A
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US2525915A
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US2629227A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |