US2772606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination suction roll and silencing and cleaning means
Assignee: Individual
•
Filing: 1955-07-29
•
Granted: 1956-12-04
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:12
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/10; D21G; D21G9/00; Y; Y10; Y10S; Y10S162/00; Y10S162/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE229634C
Cited
US1800149A
Cited
DE677526C
Cited
US2107812A
Cited
US2274641A
Cited
US2290777A
Cited
US2669912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |