US2651848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level
Assignee: Individual
•
Filing: 1948-08-02
•
Granted: 1953-09-15
•
Expires: 1968-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jack W Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US404947A
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US477187A
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US1193758A
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GB189619072A
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US782779A
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GB113315A
Cited
US1266551A
Cited
US1290793A
Cited
GB138221A
Cited
US1370233A
Cited
FR577801A
Cited
US1737936A
Cited
US2042365A
Cited
US2341809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |