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Patent US2642279A successfully refreshed from Google Patents.
US2642279A
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Web interfolding apparatus and method
Assignee: DOUGLAS CRUTCHLEY
•
Filing: 1950-02-21
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Granted: 1953-06-16
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Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Oliver E Teall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:50
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/12; B65H45/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21785E
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US660726A
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US1122511A
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US1758033A
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US2028145A
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US2388139A
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US2349056A
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US2521187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |