US1381753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washboard-anchor
Assignee: Individual
•
Filing: 1919-07-22
•
Granted: 1921-06-14
•
Expires: 1939-07-22
Abstract
No abstract record available.
Inventors
- 👤 Schlager Frank Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:34
CPC Classifications
D; D06; D06F; D06F1/00; Y; Y10; Y10T; Y10T24/00; Y10T24/31; Y10T24/314; Y10T24/34; Y10T24/3427; Y10T24/3449; Y10T24/3451; Y10T24/44; Y10T24/44641; Y10T24/44949; Y10T24/44957
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) | 1924-06-13 | 1924-12-13 | 1925-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-06-13 | 1928-12-13 | 1929-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-06-13 | 1932-12-13 | 1933-06-14 | $7700.00 | Window Closed / Lapsed |