US1722164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating flax for spinning
Assignee: Individual
•
Filing: 1928-09-18
•
Granted: 1929-07-23
•
Expires: 1948-09-18
Abstract
No abstract record available.
Inventors
- 👤 Waddell Martin
- 👤 Watson Henry Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:18
CPC Classifications
D; D01; D01B; D01B1/00; D01B1/10; D01B1/14; D01B1/18
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) | 1932-07-22 | 1933-01-21 | 1933-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-07-22 | 1937-01-21 | 1937-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-07-22 | 1941-01-21 | 1941-07-23 | $7700.00 | Window Closed / Lapsed |