US3387671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percussion tool
Assignee: Mission Manufacturing Co
•
Filing: 1965-10-15
•
Granted: 1968-06-11
•
Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Samuel L Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:58
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/06; E21B4/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1333725A
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US1861042A
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US2344725A
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US2403582A
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US2580203A
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US2758817A
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US2861778A
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US3162251A
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US3040710A
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US3101796A
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US3327790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |