US2712447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sector puzzle construction
Assignee: Individual
•
Filing: 1948-09-27
•
Granted: 1955-07-05
•
Expires: 1968-09-27
Abstract
No abstract record available.
Inventors
- 👤 Steinhardt Irving Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:38
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/12; A63F9/001; A63F2009/002; A63F2009/0027; A63F2009/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US163912A
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US766444A
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US803059A
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US802807A
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US1409082A
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US1542148A
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US1580689A
Cited
US2279208A
Cited
US2302342A
Cited
US2398011A
Cited
US2424538A
Cited
US2510716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |