Patent US2720231A successfully refreshed from Google Patents.
US2720231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous press for plywood, fiberboard and the like
Assignee: Individual
•
Filing: 1952-06-28
•
Granted: 1955-10-11
•
Expires: 1972-06-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Hessler
- 👤 Orville W Rice
- 👤 Robert F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:58
CPC Classifications
B; B30; B30B; B30B5/00; B30B5/04; B30B5/06; B30B5/065; B30B5/067; Y; Y10; Y10S; Y10S198/00; Y10S198/952
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |