US2055104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston packing
Assignee: Individual
•
Filing: 1933-10-04
•
Granted: 1936-09-22
•
Expires: 1953-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ellis E Hewitt
- 👤 William C Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/005; F16J1/006; F16J1/008
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) | 1939-09-22 | 1940-03-23 | 1940-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-22 | 1944-03-23 | 1944-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-22 | 1948-03-23 | 1948-09-22 | $7700.00 | Window Closed / Lapsed |