US1667254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1927-04-09
•
Granted: 1928-04-24
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Expires: 1947-04-09
Abstract
No abstract record available.
Inventors
- 👤 Hedrich Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/06; E05B67/08; E05B67/10; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/409; Y10T70/413; Y10T70/415; Y10T70/437; Y10T70/446; Y10T70/465; Y10T70/474; Y10T70/476; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859
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) | 1931-04-24 | 1931-10-24 | 1932-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-24 | 1935-10-24 | 1936-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-24 | 1939-10-24 | 1940-04-24 | $7700.00 | Window Closed / Lapsed |