US3055038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling cleaning apparatus
Assignee: Parks Cramer Co
•
Filing: 1961-08-01
•
Granted: 1962-09-25
•
Expires: 1981-08-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:02
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/18; D; D01; D01H; D01H11/00; D01H11/005; D01H11/006; D03; D03J; D03J1/00; D03J1/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2184732A
Cited
GB511455A
Cited
US2795291A
Cited
US2823656A
Cited
FR1178163A
Cited
FR1226751A
Cited
US3011204A
Cited
US2976558A
Cited
US3003178A
Cited
US3001222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |