US1524605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating paper stock
Assignee: GRELLET COLLINS
•
Filing: 1923-11-15
•
Granted: 1925-01-27
•
Expires: 1943-11-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:31
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/28
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) | 1928-01-27 | 1928-07-28 | 1929-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-01-27 | 1932-07-28 | 1933-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-01-27 | 1936-07-28 | 1937-01-27 | $7700.00 | Window Closed / Lapsed |