US3522460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator
Assignee: FMC Corp
•
Filing: 1967-11-02
•
Granted: 1970-08-04
•
Expires: 1987-11-02
Abstract
No abstract record available.
Inventors
- 👤 William V Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:57
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/147; H; H02; H02K; H02K33/00; H02K33/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1817403A
Cited
US1945015A
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FR870992A
Cited
US2669447A
Cited
US2662193A
Cited
US2918590A
Cited
US2726342A
Cited
US3170078A
Cited
US3053965A
Cited
US3312841A
Cited
US3333219A
Cited
US3404299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |