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US2609996A
Expired / Lapsed
US
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Sheetsx s sheet
Assignee: —
•
Filing: —
•
Granted: 1952-09-09
•
Expires: 1969-09-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:48
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/02; B02C13/04; B02C13/06; B02C13/09; B02C13/1835; B02C13/26; B02C13/28; B02C13/282; B02C13/284; B02C13/286; B02C2013/28618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2478733A
Cited
US2514111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |