US3413854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravimeter
Assignee: Continental Elektronidustrie AG
•
Filing: 1967-08-29
•
Granted: 1968-12-03
•
Expires: 1987-08-29
Abstract
No abstract record available.
Inventors
- 👤 Graf Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:19
CPC Classifications
G; G01; G01V; G01V7/00; G01V7/16; G01V7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3019655A
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US3176521A
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US3211003A
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US3323372A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |