US2720115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser level
Assignee: Unisys Corp
•
Filing: 1949-11-08
•
Granted: 1955-10-11
•
Expires: 1969-11-08
Abstract
No abstract record available.
Inventors
- 👤 Willis G Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:09
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1271
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007998A
Cited
US1687970A
Cited
GB243318A
Cited
US1763806A
Cited
US2103741A
Cited
US2252727A
Cited
GB614806A
Cited
GB626217A
Cited
US2556838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |