US2484249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of gas mixtures
Assignee: Texaco Development Corp
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Filing: 1947-03-19
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Granted: 1949-10-11
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Expires: 1967-03-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Ruble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
F; F02; F02B; F02B43/00; F02B2275/00; F02B2275/42; F02B2710/00; F02B2710/02; F02B2710/026; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30; Y10; Y10S; Y10S48/00; Y10S48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |