Patent US2070205A successfully refreshed from Google Patents.
US2070205A
Expired / Lapsed
US
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Manufacture of window envelopes
Assignee: United States Envelope Co
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Filing: 1934-06-27
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Granted: 1937-02-09
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Expires: 1954-06-27
Abstract
No abstract record available.
Inventors
- 👤 Vincent E Heywood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:23
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/62; B31B2150/00; B31B2160/00; B31B2160/10; B31B70/74; B31B70/81; B31B70/82; 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) | 1940-02-09 | 1940-08-10 | 1941-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-09 | 1944-08-10 | 1945-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-09 | 1948-08-10 | 1949-02-09 | $7700.00 | Window Closed / Lapsed |