US2420329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant for processing metals
Assignee: EIDP Inc
•
Filing: 1945-06-01
•
Granted: 1947-05-13
•
Expires: 1965-06-01
Abstract
No abstract record available.
Inventors
- 👤 Shipp Joseph Harrel
- 👤 Bacon Osborne Coster
- 👤 Charles J Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:16
CPC Classifications
C; C10; C10M; C10M173/00; C10M2223/00; C10M2223/02; C10M2223/04; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1617077A
Cited
US1717939A
Cited
US1947725A
Cited
US2023383A
Cited
US2045551A
Cited
US2291066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |