US2794444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web edge position detector
Assignee: Askania Regulator Co
•
Filing: 1955-08-22
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Granted: 1957-06-04
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Expires: 1975-08-22
Abstract
No abstract record available.
Inventors
- 👤 Frank J Markey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:01
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/42; G01D5/44; F; F15; F15C; F15C1/00; F15C1/005; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2539131A
Cited
US2672150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |