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US3477646A
Expired / Lapsed
US
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Scarfing unit
Assignee: L-Tec Co
•
Filing: 1967-01-06
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Granted: 1969-11-11
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Expires: 1987-01-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:42
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/06; B05; B05B; B05B1/00; B05B1/02; B05B1/04; Y; Y10; Y10S; Y10S266/00; Y10S266/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2745475A
Cited
US2754234A
Cited
US2838431A
Cited
US2873224A
Cited
US2897883A
Cited
US3231431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |