Patent US207871A successfully refreshed from Google Patents.
US207871A
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US
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Improvement in elastic packings for pistons
Assignee: —
•
Filing: —
•
Granted: 1878-09-10
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Expires: 1895-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:16
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/935; Y10S277/936; Y10S285/00; Y10S285/91; Y10S285/918; Y10S411/00; Y10S411/915
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) | 1881-09-09 | 1882-03-11 | 1882-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-09-09 | 1886-03-11 | 1886-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-09-09 | 1890-03-11 | 1890-09-10 | $7700.00 | Window Closed / Lapsed |