Patent US1752608A successfully refreshed from Google Patents.
US1752608A
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US
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Envelope machine
Assignee: GAW O HARA ENVELOPE CO
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Filing: 1926-03-03
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Granted: 1930-04-01
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Expires: 1946-03-03
Abstract
No abstract record available.
Inventors
- 👤 Olgay Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:48
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/62; B31B2150/00; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/917; Y10S493/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-03-31 | 1933-09-30 | 1934-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-03-31 | 1937-09-30 | 1938-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-03-31 | 1941-09-30 | 1942-04-01 | $7700.00 | Window Closed / Lapsed |