US2452296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure indicator
Assignee: GENEVIEVE B ESLINGER
•
Filing: 1944-08-22
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Granted: 1948-10-26
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Expires: 1964-08-22
Abstract
No abstract record available.
Inventors
- 👤 Eslinger Wallace Vernard
- 👤 Barton William Nathaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:17
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/06; B60C23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE280483C
Cited
US1198688A
Cited
US1947760A
Cited
US2057445A
Cited
US2191205A
Cited
US2258334A
Cited
US2324618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |