Patent US1803935A successfully refreshed from Google Patents.
US1803935A
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US
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Conveying system
Assignee: Stokes and Smith Co
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Filing: 1925-07-01
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Granted: 1931-05-05
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Expires: 1945-07-01
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Federwitz
- 👤 Walter T Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:58
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/42; B65B43/52; B31; B31B; B31B2105/00; B31B2105/002; B31B2105/0024; B31B2110/00; B31B2110/30; B31B2110/35; B31B2120/00; B31B2120/50; B31B50/00; B31B50/02; B31B50/022; B31B50/024; B31B50/26; B31B50/44
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) | 1934-05-04 | 1934-11-03 | 1935-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-05-04 | 1938-11-03 | 1939-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-05-04 | 1942-11-03 | 1943-05-05 | $7700.00 | Window Closed / Lapsed |