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Patent US2482438A successfully refreshed from Google Patents.
US2482438A
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Acetylene manufacture
Assignee: Phillips Petroleum Co
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Filing: 1946-05-24
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Granted: 1949-09-20
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Expires: 1966-05-24
Abstract
No abstract record available.
Inventors
- 👤 Sam P Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:21
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/22; C07C11/24; C07C4/00; C07C4/02; C07C4/06; C07C5/00; C07C5/32; C07C5/35; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2523/755; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153
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) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |