Patent US2669931A successfully refreshed from Google Patents.
Patent US1123422A successfully refreshed from Google Patents.
US1123422A
Expired / Lapsed
US
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Method for producing a transparent panel in paper and the like.
Assignee: United States Envelope Co
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Filing: 1913-07-28
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Granted: 1915-01-05
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Expires: 1933-07-28
Abstract
No abstract record available.
Inventors
- 👤 Willard E Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/26; 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) | 1918-01-04 | 1918-07-06 | 1919-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-01-04 | 1922-07-06 | 1923-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-01-04 | 1926-07-06 | 1927-01-05 | $7700.00 | Window Closed / Lapsed |