US2589629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical lead slapper
Assignee: North American Aviation Corp
•
Filing: 1950-07-17
•
Granted: 1952-03-18
•
Expires: 1970-07-17
Abstract
No abstract record available.
Inventors
- 👤 Roger S Raymond
- 👤 Mcgee Gerald Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
B; B21; B21D; B21D1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE202201C
Cited
US690320A
Cited
US785937A
Cited
US1231453A
Cited
US1952908A
Cited
US2052355A
Cited
DE698594C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |