Patent US2535490A successfully refreshed from Google Patents.
US2535490A
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Automatic electric index fixture
Assignee: Individual
•
Filing: 1949-05-20
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Granted: 1950-12-26
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Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Emrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:31
CPC Classifications
G; G05; G05G; G05G21/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T409/308848; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |