US2229038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid feeding apparatus
Assignee: Wallace & Tiernan Co Inc
•
Filing: 1937-05-05
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Granted: 1941-01-21
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Expires: 1957-05-05
Abstract
No abstract record available.
Inventors
- 👤 Booth George Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; F04B9/00; F04B9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514
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) | 1944-01-21 | 1944-07-22 | 1945-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-21 | 1948-07-22 | 1949-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-21 | 1952-07-22 | 1953-01-21 | $7700.00 | Window Closed / Lapsed |