US2768583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circulating pump devices
Assignee: EMERJY SOC
•
Filing: 1953-06-29
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Granted: 1956-10-30
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Expires: 1973-06-29
Abstract
No abstract record available.
Inventors
- 👤 Richard Albert
- 👤 Metral Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0673; F04D3/00; F04D13/0606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |