Patent US3371188A successfully refreshed from Google Patents.
US3371188A
Expired / Lapsed
US
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Electrically heated torch for elevating the temperature and directing the flow of a gas
Assignee: HENES Mfg CO Inc
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Filing: 1965-08-25
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Granted: 1968-02-27
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Richard W Henes
- 👤 Nielsen Frithiof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:06
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US750038A
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US742305A
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US1832899A
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US1988827A
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US2212294A
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US2730609A
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US2778919A
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US2859327A
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US2951927A
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US3094606A
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US3047050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |