US2957197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door hanger
Assignee: Individual
•
Filing: 1958-08-22
•
Granted: 1960-10-25
•
Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Leonard E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/0626; E05D15/063; E05D15/0634; E05D15/0639; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/64; E05Y2600/00; E05Y2600/50; E05Y2600/52; E05Y2600/528; E05Y2600/60; E05Y2600/626; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1065794A
Cited
US2207322A
Cited
US2386510A
Cited
US2482856A
Cited
US2525143A
Cited
US2503848A
Cited
US2653344A
Cited
US2845846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |