Patent US2801308A successfully refreshed from Google Patents.
US2801308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact switch for material guiding device
Assignee: Individual
•
Filing: 1955-11-16
•
Granted: 1957-07-30
•
Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Cubellis Guido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:38
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0208; B21; B21D; B21D43/00; B21D43/02; B21D43/021; B21D43/023; B26; B26D; B26D7/00; B26D7/01; B26D7/015
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2185773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |