Patent US3021092A successfully refreshed from Google Patents.
Patent US2770176A successfully refreshed from Google Patents.
US2770176A
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Method and apparatus for making open side envelopes
Assignee: FL Smithe Machine Co Inc
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Filing: 1952-10-25
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Granted: 1956-11-13
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Expires: 1972-10-25
Abstract
No abstract record available.
Inventors
- 👤 Novick Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:03
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/62; B31B70/626; B31B2150/00; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2087605A
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US2062265A
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US2019946A
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US2173171A
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US2119951A
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US2151228A
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US2210298A
Cited
US2132227A
Cited
US2290564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |