US2820633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stream sheet delivery system
Assignee: CHAMPLAIN CO Inc
•
Filing: 1953-06-22
•
Granted: 1958-01-21
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Caulfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:55
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/68; B65H29/02; B65H29/04; B65H29/042; B65H29/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1545914A
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US1545912A
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US2127568A
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US2177460A
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US2261973A
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US2261972A
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US2381430A
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US2670955A
Cited
US2638343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |