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US2554130A
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US
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Heater for gases or vapors
Assignee: Phillips Petroleum Co
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Filing: 1944-12-05
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Granted: 1951-05-22
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Expires: 1964-12-05
Abstract
No abstract record available.
Inventors
- 👤 Strunk Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US217022A
Cited
US2105819A
Cited
FR429629A
Cited
US1382670A
Cited
US1382509A
Cited
US1964100A
Cited
US2105241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |