US2830810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for paper towels and the like having a controlled operation
Assignee: ROGER F WILLIAMS
•
Filing: 1955-04-04
•
Granted: 1958-04-15
•
Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Bearl E Colburn
- 👤 Colburn Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/24; A47K10/32; A47K10/34; A47K10/36; A47K10/3656; A47K10/3631; A47K10/3637
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1186685A
Cited
US2134631A
Cited
US2277051A
Cited
US2219570A
Cited
US2260925A
Cited
US2592786A
Cited
US2712934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |