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Patent US2786232A successfully refreshed from Google Patents.
US2786232A
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Feeding mechanism
Assignee: Phillips Petroleum Co
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Filing: 1952-01-28
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Granted: 1957-03-26
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Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 Harold A Larson
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:42
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/60; Y; Y10; Y10S; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2015954A
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US2164164A
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GB638863A
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US2504787A
Cited
US2571637A
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US2638625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |