US3492738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring small deviations from a true horizontal plane
Assignee: Arthur D Little Inc
•
Filing: 1967-08-29
•
Granted: 1970-02-03
•
Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Ivan Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
G; G01; G01C; G01C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937223A
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US2141175A
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US2958137A
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US3229103A
Cited
US3175405A
Cited
US3225608A
Cited
US3287676A
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US3358377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |