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US2547823A
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Regulator system
Assignee: Individual
•
Filing: 1944-05-10
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Granted: 1951-04-03
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Josephian William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:58
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/12; B67D1/1252; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569; Y10T137/2572; Y10T137/4673; Y10T137/4857; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7821
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518513A
Cited
US1304754A
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US2202313A
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US2176580A
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US2270304A
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US2329363A
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US2306382A
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US2320886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |