Patent US2998972A successfully refreshed from Google Patents.
US2998972A
Expired / Lapsed
US
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Collating machine
Assignee: American Greetings Corp
•
Filing: 1955-09-20
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Granted: 1961-09-05
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Expires: 1975-09-20
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:28
CPC Classifications
B; B65; B65H; B65H39/00; B65H39/02; B65H39/04; B65H39/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2476250A
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US2634972A
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US2536356A
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US2621040A
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US2821384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |