US2748602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure gage
Assignee: Celanese Corp
•
Filing: 1952-07-03
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Granted: 1956-06-05
•
Expires: 1972-07-03
Abstract
No abstract record available.
Inventors
- 👤 Weber Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:20
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/06; G01L19/0681; G01L19/0627; G01L19/08; G01L19/10; G01L7/00; G01L7/02; G01L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1183675A
Cited
GB505503A
Cited
GB573987A
Cited
US2518540A
Cited
FR916664A
Cited
US2585350A
Cited
US2608865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |