US3427840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stock lubricating system
Assignee: HUDSON MACHINE AND TOOL CORP
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Filing: 1965-12-16
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Granted: 1969-02-18
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Walter Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:38
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/04; B05C1/06; B21; B21D; B21D37/00; B21D37/18; F; F16; F16N; F16N27/00; B05C9/00; B05C9/04; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B45/0251; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |