US3417434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Groove forming tool for pipes
Assignee: Individual
•
Filing: 1966-09-14
•
Granted: 1968-12-24
•
Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Hafner Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:43
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/02; B29C57/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US258122A
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US3124857A
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US860144A
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US841504A
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US859681A
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US1270604A
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US1279214A
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US1698676A
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US1788428A
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US2447703A
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US2469629A
Cited
US3201844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |