US2684848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for interleaving folded sheet material
Assignee: PEARCE DEV Co
•
Filing: 1949-08-10
•
Granted: 1954-07-27
•
Expires: 1969-08-10
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
B; B65; B65H; B65H39/00; B65H39/02; B65H39/04; B31; B31B; B31B2150/00; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1043401A
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US924637A
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US1149546A
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US1689668A
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US1833311A
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US1979253A
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US2163145A
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US2223391A
Cited
US2449690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |