US2863220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Layout wheel for tubular constructions
Assignee: MARGUERITE G STAPLES
•
Filing: 1956-01-23
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Granted: 1958-12-09
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 James D Staples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
B; B25; B25H; B25H7/00; B25H7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US66120A
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US135185A
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US399966A
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US1718052A
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GB190314629A
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US1291485A
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US1437298A
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GB288412A
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US2262664A
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US2677891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |