US2987986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission of flowable substances
Assignee: Lever Brothers Co
•
Filing: 1955-10-28
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Granted: 1961-06-13
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Euwe Gerrit Evert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:36
CPC Classifications
A; A01; A01J; A01J21/00; A01J21/02; B; B65; B65B; B65B3/00; B65B3/04; B65B3/10; B65B3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2531; Y10T137/2544; Y10T137/2557; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |