US2881596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled volume metering of liquefied gases
Assignee: Milton Roy LLC
•
Filing: 1956-08-30
•
Granted: 1959-04-14
•
Expires: 1976-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert T Sheen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:18
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1771170A
Cited
US2560948A
Cited
GB377939A
Cited
US2273213A
Cited
US2576747A
Cited
US2631437A
Cited
US2678541A
Cited
US2673038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |