Patent US3035524A successfully refreshed from Google Patents.
US3035524A
Expired / Lapsed
US
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Pump for conveying concrete or other viscid masses
Assignee: Individual
•
Filing: 1958-04-08
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Granted: 1962-05-22
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Expires: 1978-04-08
Abstract
No abstract record available.
Inventors
- 👤 Kastner Otto Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:04
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/02; F04B15/023; F01; F01L; F01L23/00; F01L25/00; F01L25/08; F04B7/00; F04B7/02; F04B7/0208; F04B7/0225; F04B9/00; F04B9/08; F04B9/10; F04B9/103; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2814551A
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US2746395A
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DE944286C
Cited
US2772664A
Cited
FR1103605A
Cited
US2797645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |