US1208688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing attrition-sheets and the articles of manufacture produced thereby.
Assignee: Individual
•
Filing: 1913-03-31
•
Granted: 1916-12-12
•
Expires: 1933-03-31
Abstract
No abstract record available.
Inventors
- 👤 Herman F Stempel Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:25
CPC Classifications
B; B32; B32B; B32B23/00; B32B23/04; B32B23/06; B82; B82Y; B82Y30/00; C; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/29; Y10T428/2982
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) | 1919-12-12 | 1920-06-12 | 1920-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-12-12 | 1924-06-12 | 1924-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-12-12 | 1928-06-12 | 1928-12-12 | $7700.00 | Window Closed / Lapsed |