US2944812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for registering and timing envelope blanks and similar work pieces in the processing thereof
Assignee: Berkley Machine Co
•
Filing: 1957-05-31
•
Granted: 1960-07-12
•
Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Winkler Richard
- 👤 Dunnebier Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:11
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/02; B31B70/022; B31B70/024; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US448285A
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US479042A
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US1385468A
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US2127568A
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US2191505A
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GB458158A
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US2082240A
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US2069397A
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US2248079A
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US2287719A
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US2467241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |