US1774830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slowness tester for paper pulp
Assignee: Individual
•
Filing: 1929-04-15
•
Granted: 1930-09-02
•
Expires: 1949-04-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:09
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/34; G01N33/343
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) | 1933-09-01 | 1934-03-03 | 1934-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-09-01 | 1938-03-03 | 1938-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-09-01 | 1942-03-03 | 1942-09-02 | $7700.00 | Window Closed / Lapsed |