US2724929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work blasting equipment
Assignee: Pangborn Corp
•
Filing: 1953-04-20
•
Granted: 1955-11-29
•
Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:00
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26; B24C3/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702759A
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US1882443A
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US1934461A
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US2058257A
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US2131771A
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US2274891A
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US2457461A
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US2441578A
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US2563084A
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US2574867A
Cited
US2617545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |