US2951575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Classifier
Assignee: Blaw Knox Co
•
Filing: 1956-04-19
•
Granted: 1960-09-06
•
Expires: 1976-04-19
Abstract
No abstract record available.
Inventors
- 👤 Neil T Gordon
- 👤 Clyde D Michaels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:17
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/58; B65H29/60; B07; B07C; B07C5/00; B07C5/36; B65H29/66; B65H29/6609; B65H29/6618; B65H2511/00; B65H2511/20; B65H2511/21; B65H2511/214; B65H2513/00; B65H2513/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1763308A
Cited
US2697506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |