US2737646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transient viewer and recorder
Assignee: Gulf Research and Development Co
•
Filing: 1952-06-12
•
Granted: 1956-03-06
•
Expires: 1972-06-12
Abstract
No abstract record available.
Inventors
- 👤 Muffly Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:12
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1632099A
Cited
US1941618A
Cited
US2105016A
Cited
US2378383A
Cited
US2597001A
Cited
FR986473A
Cited
US2690473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |