US2555640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing gland lubricator
Assignee: Phillips Petroleum Co
•
Filing: 1945-12-29
•
Granted: 1951-06-05
•
Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Owen L Garretson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:46
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/106; F04D29/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1841863A
Cited
US2102140A
Cited
US2049774A
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US2107260A
Cited
US2347751A
Cited
US2425885A
Cited
US2455678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |