Patent US3477019A successfully refreshed from Google Patents.
US3477019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rupture strip for indicating earth movement
Assignee: TDY Industries LLC
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Filing: 1967-07-21
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Granted: 1969-11-04
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Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 Bert E Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:07
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/20; G01V1/201; G01V1/208; G01V1/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2692924A
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US3367175A
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US2958065A
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US3072500A
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US3111655A
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US3149266A
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US3230327A
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US3260810A
Cited
US3359488A
Cited
US3340607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |