Patent US6058308A successfully refreshed from Google Patents.
Patent US2042212A successfully refreshed from Google Patents.
US2042212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1936-05-26
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Expires: 1953-05-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:19
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C10L1/023; C07; C07C; C07C29/00; C07C29/03; C07C29/04; C07C29/05; C07C29/06
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) | 1939-05-26 | 1939-11-25 | 1940-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-26 | 1943-11-25 | 1944-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-26 | 1947-11-25 | 1948-05-26 | $7700.00 | Window Closed / Lapsed |