Patent US2378802A successfully refreshed from Google Patents.
US2378802A
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US
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Controlling device
Assignee: Ingersoll Rand Co
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Filing: 1943-03-12
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Granted: 1945-06-19
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Expires: 1963-03-12
Abstract
No abstract record available.
Inventors
- 👤 Fred M Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:03
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/08; E; E21; E21B; E21B1/00; E21B1/12; E21B1/24; E21B1/30; F; F01; F01B; F01B23/00; F04; F04B; F04B49/00; F04B49/20
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) | 1948-06-18 | 1948-12-18 | 1949-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-18 | 1952-12-18 | 1953-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-18 | 1956-12-18 | 1957-06-19 | $7700.00 | Window Closed / Lapsed |