US2993972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1958-09-17
•
Granted: 1961-07-25
•
Expires: 1978-09-17
Abstract
No abstract record available.
Inventors
- 👤 Weldon A Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:32
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/001; B; B23; B23K; B23K9/00; B23K9/10; B23K9/1087; H01H19/005; H01H2019/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1892542A
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US1954689A
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US1986527A
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US2151910A
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US2243269A
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US2717966A
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US2803715A
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US2820856A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |