Patent US1903210A successfully refreshed from Google Patents.
US1903210A
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Sealing and thrust balancing means
Assignee: Carrier Engineering Corp
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Filing: 1929-02-28
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Granted: 1933-03-28
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Expires: 1949-02-28
Abstract
No abstract record available.
Inventors
- 👤 Willis H Carrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/342; F16J15/40
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) | 1936-03-27 | 1936-09-26 | 1937-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-27 | 1940-09-26 | 1941-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-27 | 1944-09-26 | 1945-03-28 | $7700.00 | Window Closed / Lapsed |