US1492271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed mechanism for feeders connected in gangs
Assignee: Sprout Waldron & Co
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Filing: 1923-06-21
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Granted: 1924-04-29
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Expires: 1943-06-21
Abstract
No abstract record available.
Inventors
- 👤 Snyder Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
B; B02; B02C; B02C11/00; B02C11/04; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7173; B01F35/71731; B01F35/7178; B01F35/20; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18184; Y10T74/182; Y10T74/1836; Y10T74/18376; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19112
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) | 1927-04-29 | 1927-10-29 | 1928-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-29 | 1931-10-29 | 1932-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-29 | 1935-10-29 | 1936-04-29 | $7700.00 | Window Closed / Lapsed |