Patent US2810173A successfully refreshed from Google Patents.
US2810173A
Expired / Lapsed
US
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Assignee: Individual
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Filing: 1954-03-12
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Granted: 1957-10-22
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Bearden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:56
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/076; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3443; Y10T24/44; Y10T24/44017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |