US2258428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for dividing a web
Assignee: Certainteed LLC
•
Filing: 1940-07-18
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Granted: 1941-10-07
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Expires: 1960-07-18
Abstract
No abstract record available.
Inventors
- 👤 Lee R Stalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:42
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/04; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12; Y10T225/14; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/336; Y10T225/343; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2087
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) | 1944-10-06 | 1945-04-07 | 1945-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-06 | 1949-04-07 | 1949-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-06 | 1953-04-07 | 1953-10-07 | $7700.00 | Window Closed / Lapsed |