US1429609A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1922-03-22
•
Granted: 1922-09-19
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Expires: 1942-03-22
Abstract
No abstract record available.
Inventors
- 👤 Willis R Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:55
CPC Classifications
E; E05; E05B; E05B35/00; E05B35/08; E05B35/12; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7537; Y10T70/7542; Y10T70/7548; Y10T70/80; Y10T70/8865
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) | 1925-09-18 | 1926-03-20 | 1926-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-18 | 1930-03-20 | 1930-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-18 | 1934-03-20 | 1934-09-19 | $7700.00 | Window Closed / Lapsed |