Patent US2616747A successfully refreshed from Google Patents.
US2616747A
Expired / Lapsed
US
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Bail construction
Assignee: J P RATIGAN Inc
•
Filing: 1950-04-24
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Granted: 1952-11-04
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Expires: 1970-04-24
Abstract
No abstract record available.
Inventors
- 👤 James P Ratigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:54
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; E21B19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1127716A
Cited
US1150741A
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US2245938A
Cited
US2296769A
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US2435336A
Cited
US2469612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |