Patent US1982828A successfully refreshed from Google Patents.
US1982828A
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US
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Assignee: Sunoco Inc
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Filing: 1932-06-17
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Granted: 1934-12-04
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Expires: 1952-06-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur E Pew
- 👤 Leon A Tarbox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:54
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/12; B01J20/20; B01J20/30; B01J20/34; B01J20/3416; B01J20/3433; B01J20/345; B01J20/3475
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) | 1937-12-03 | 1938-06-04 | 1938-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-03 | 1942-06-04 | 1942-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-03 | 1946-06-04 | 1946-12-04 | $7700.00 | Window Closed / Lapsed |