Patent US2660034A successfully refreshed from Google Patents.
US2660034A
Expired / Lapsed
US
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Method and apparatus for placing fluent material
Assignee: Individual
•
Filing: 1947-05-21
•
Granted: 1953-11-24
•
Expires: 1967-05-21
Abstract
No abstract record available.
Inventors
- 👤 Maxwell F Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:38
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/04; E21D11/10; E21D11/105; Y; Y10; Y10S; Y10S366/00; Y10S366/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1553476A
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US1290459A
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US1419675A
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US1981883A
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US1923303A
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US2013345A
Cited
US2190727A
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US2313826A
Cited
US2419329A
Cited
US2370427A
Cited
US2429045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |