Patent US2949435A successfully refreshed from Google Patents.
Patent US102823A successfully refreshed from Google Patents.
US102823A
Expired / Lapsed
US
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Improvement in life-preservers
Assignee: —
•
Filing: —
•
Granted: 1870-05-10
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Expires: 1887-05-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:35
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7436; Y10T137/8593; Y10T137/87917; Y10T137/88054
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) | 1873-05-09 | 1873-11-08 | 1874-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1877-05-09 | 1877-11-08 | 1878-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1881-05-09 | 1881-11-08 | 1882-05-10 | $7700.00 | Window Closed / Lapsed |