US2855926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coin actuated oxygen dispensing machine
Assignee: OXY O METER Inc
•
Filing: 1955-11-15
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Granted: 1958-10-14
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Expires: 1975-11-15
Abstract
No abstract record available.
Inventors
- 👤 Koppelman Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:29
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/02; G; G07; G07F; G07F15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1695930A
Cited
US1957069A
Cited
US2039901A
Cited
US2234101A
Cited
US2559654A
Cited
US2659516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |