US2851053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning machines with dual outlets
Assignee: AEROIL PROD
•
Filing: 1953-05-13
•
Granted: 1958-09-09
•
Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Wollner Paul
- 👤 Jr Richard H Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/02; B08B3/026; B08B2230/00; B08B2230/01; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6443; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86163; Y10T137/87153; Y10T137/87161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451019A
Cited
US2755130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |