US2565873A
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US
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Assignee: GTE Sylvania Inc
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Filing: 1948-10-22
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Granted: 1951-08-28
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Expires: 1968-10-22
Abstract
No abstract record available.
Inventors
- 👤 Alvin D Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:58
CPC Classifications
G; G05; G05G; G05G7/00; G05G7/02; G05G7/06; Y; Y10; Y10S; Y10S292/00; Y10S292/04; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0948; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US625639A
Cited
US632043A
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DE348788C
Cited
US1748881A
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US1906571A
Cited
US2053886A
Cited
US2420166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |