Patent US443873A successfully refreshed from Google Patents.
US443873A
Expired / Lapsed
US
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Safety device for vulcanizing apparatus
Assignee: —
•
Filing: —
•
Granted: 1890-12-30
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Expires: 1907-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:37
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162; Y; Y10; Y10S; Y10S137/00; Y10S137/91; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714
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) | 1893-12-29 | 1894-06-30 | 1894-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-12-29 | 1898-06-30 | 1898-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-12-30 | 1902-07-01 | 1902-12-31 | $7700.00 | Window Closed / Lapsed |