Patent US2670503A successfully refreshed from Google Patents.
US2670503A
Expired / Lapsed
US
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Control device
Assignee: Milliken Research Corp
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Filing: 1949-04-30
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Granted: 1954-03-02
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Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Wilmer C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:26
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/32; D01H5/38; D01H13/00; D01H13/14; D01H13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US221159A
Cited
US1791289A
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US1899791A
Cited
US2270720A
Cited
US2400837A
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US2433444A
Cited
US2390799A
Cited
US2412324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |