Patent US3047050A successfully refreshed from Google Patents.
US3047050A
Expired / Lapsed
US
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Hot air welding apparatus
Assignee: Individual
•
Filing: 1959-06-19
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Granted: 1962-07-31
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Sourber Earl Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5092; B29C65/02; B29C65/10; B29C65/103; B29C65/4805; B29C65/481; B29C65/4815; B29C65/5042; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/83; B29C66/836; B29C66/8362; B29C66/84; B29C66/861; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316739A
Cited
US2437263A
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US1851281A
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US2220545A
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US2176139A
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US2372737A
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US2556609A
Cited
US2786511A
Cited
US2862543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |