US3028634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for treating wood pulp and the like
Assignee: Curlator Corp
•
Filing: 1958-04-16
•
Granted: 1962-04-10
•
Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 James T Coghill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:55
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB215555A
Cited
US1058114A
Cited
US1719784A
Cited
US2589307A
Cited
US2646728A
Cited
US2674928A
Cited
US2884036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |