US2675930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming stacks of boards
Assignee: United States Gypsum Co
•
Filing: 1946-06-28
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Granted: 1954-04-20
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Expires: 1966-06-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Youngfelt
- 👤 Joseph A Besal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/30; B65H31/3054; B65H29/00; B65H29/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |