US2635538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press for printing individual workpieces such as envelopes
Assignee: WALBERT MACHINE Co
•
Filing: 1950-05-19
•
Granted: 1953-04-21
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Ross E Skow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
B; B41; B41L; B41L19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1779310A
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US2033849A
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US1948142A
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US2083296A
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US2082064A
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US2251945A
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US2425936A
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US2233153A
Cited
US2248079A
Cited
US2374668A
Cited
US2318215A
Cited
US2432133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |