Patent US2072801A successfully refreshed from Google Patents.
US2072801A
Expired / Lapsed
US
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Gas pyrolysis
Assignee: Gasoline Products Co Inc
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Filing: 1934-11-30
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Granted: 1937-03-02
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Expires: 1954-11-30
Abstract
No abstract record available.
Inventors
- 👤 Wright W Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:33
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; B01J19/0026; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-03-01 | 1940-08-31 | 1941-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-01 | 1944-08-31 | 1945-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-01 | 1948-08-31 | 1949-03-02 | $7700.00 | Window Closed / Lapsed |