US1787289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reagent feeder
Assignee: Wyeth Holdings LLC
•
Filing: 1928-11-28
•
Granted: 1930-12-30
•
Expires: 1948-11-28
Abstract
No abstract record available.
Inventors
- 👤 George G Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:31
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/1443; B03D1/145; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/151
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) | 1933-12-29 | 1934-06-30 | 1934-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-29 | 1938-06-30 | 1938-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-29 | 1942-06-30 | 1942-12-30 | $7700.00 | Window Closed / Lapsed |