US2844790A
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Assignee: Vitro Corp of America
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Filing: 1953-06-12
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Granted: 1958-07-22
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Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Thompson
- 👤 Charles K Raynsford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:24
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/13; H03K5/131; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/14; G01S13/16; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/22; G04; G04F; G04F10/00; G04F10/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2274158A
Cited
US2301197A
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US2403873A
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US2422698A
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US2454782A
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US2558447A
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US2665410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |