US3066352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacturing fiberboards
Assignee: Individual
•
Filing: 1958-08-18
•
Granted: 1962-12-04
•
Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Waldenstrom Sigurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:25
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14; B27N3/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2369488A
Cited
FR1011675A
Cited
US2728939A
Cited
US2717420A
Cited
FR1038008A
Cited
US2737997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |