US2847020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Harvey Machine Co Inc
•
Filing: 1953-01-12
•
Granted: 1958-08-12
•
Expires: 1973-01-12
Abstract
No abstract record available.
Inventors
- 👤 Paul E Anderson
- 👤 Stephen A Stam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:58
CPC Classifications
F; F16; F16K; F16K31/00; F01; F01D; F01D17/00; F01D17/20; F01D17/205; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/3476; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US463623A
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US822887A
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US817153A
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US1284845A
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CH112466A
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US1662858A
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US2177063A
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US2145117A
Cited
US2500618A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |