Patent US2760083A successfully refreshed from Google Patents.
Patent US2997830A successfully refreshed from Google Patents.
US2997830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folder loader machines
Assignee: Waldorf Paper Products Co
•
Filing: 1959-02-16
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Granted: 1961-08-29
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Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Iver L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:55
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/08; B65B43/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1988452A
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US2248724A
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US2441445A
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US2603047A
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US2685374A
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US2775196A
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US2848926A
Cited
US2904941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |