US2917568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen delivery tube
Assignee: Dayton Rubber Co
•
Filing: 1956-10-25
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Granted: 1959-12-15
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Expires: 1976-10-25
Abstract
No abstract record available.
Inventors
- 👤 Edward W Moorman
- 👤 Noyes Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:45
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/118; F16L11/1185; A; A62; A62B; A62B9/00; H; H01; H01B; H01B7/00; H01B7/0072
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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |