US2931536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for paper blanks
Assignee: SANITOR Manufacturing CO
•
Filing: 1955-11-25
•
Granted: 1960-04-05
•
Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 John C Thomasma
- 👤 Charls W Thomasma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:15
CPC Classifications
A; A47; A47K; A47K17/00; A47K17/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1434061A
Cited
US937584A
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US1440101A
Cited
US1446285A
Cited
US1677938A
Cited
US1953037A
Cited
US2299940A
Cited
US2571831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |