US2599579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streamline depth charge
Assignee: Individual
•
Filing: 1943-02-01
•
Granted: 1952-06-10
•
Expires: 1963-02-01
Abstract
No abstract record available.
Inventors
- 👤 Robert H Park
- 👤 Arthur G Russell
- 👤 Waldron S Macdonald
- 👤 Robert R Crookston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:06
CPC Classifications
F; F42; F42B; F42B21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US330227A
Cited
US542732A
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US1316917A
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US1343969A
Cited
US1384841A
Cited
US1466915A
Cited
US1780592A
Cited
FR803907A
Cited
US2252059A
Cited
US2406870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |