US3068514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material treating apparatus and method
Assignee: Welding Engineers Inc
•
Filing: 1960-08-30
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Granted: 1962-12-18
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Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Louis F Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:17
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/484; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/50; B29C48/505; B29C48/535; B29C48/54; B29C48/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE649187C
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US2289264A
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US2496147A
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US2511203A
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US2765490A
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DE860261C
Cited
US2733051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |