US2461527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percussive tool
Assignee: Joy Manufacturing Co
•
Filing: 1943-02-13
•
Granted: 1949-02-15
•
Expires: 1963-02-13
Abstract
No abstract record available.
Inventors
- 👤 John C Curtis
- 👤 Elmer G Gartin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:24
CPC Classifications
E; E21; E21B; E21B1/00; E21B1/12; E21B1/24; E21B1/30; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1527
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284173A
Cited
US351657A
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US432679A
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US439162A
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US902836A
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US1196052A
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GB189730158A
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US1029082A
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US700081A
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US883730A
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US915893A
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US1162964A
Cited
US1317874A
Cited
GB157487A
Cited
FR530133A
Cited
US1675326A
Cited
US1602901A
Cited
US1874133A
Cited
US1776273A
Cited
US1940143A
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DE633431C
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US2028252A
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US2043352A
Cited
US2224861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |