US3066542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous web perforating machine
Assignee: National Gypsum Co
•
Filing: 1958-07-17
•
Granted: 1962-12-04
•
Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 John A Einhiple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:22
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/06; B26F1/08; B21; B21D; B21D28/00; B21D28/24; B21D28/36; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1836; Y10T74/184; Y10T74/18544; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4783; Y10T83/4786; Y10T83/4795; Y10T83/4812
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) | 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 |