US1276990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing window-envelops.
Assignee: Individual
•
Filing: 1917-10-19
•
Granted: 1918-08-27
•
Expires: 1937-10-19
Abstract
No abstract record available.
Inventors
- 👤 George W Swift Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/82; B31B70/826; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/106; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1921-08-26 | 1922-02-25 | 1922-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-08-26 | 1926-02-25 | 1926-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-08-26 | 1930-02-25 | 1930-08-27 | $7700.00 | Window Closed / Lapsed |