US2692437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field map measurer
Assignee: Individual
•
Filing: 1953-05-04
•
Granted: 1954-10-26
•
Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert M Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:00
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1084; G01B3/1092; G01B3/1003; G01B3/1089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US809139A
Cited
US861952A
Cited
AT35152B
Cited
US1445922A
Cited
US2063423A
Cited
US2108251A
Cited
US2422745A
Cited
US2582405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |