US2941508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking pencil
Assignee: Individual
•
Filing: 1955-08-29
•
Granted: 1960-06-21
•
Expires: 1975-08-29
Abstract
No abstract record available.
Inventors
- 👤 Walter B Spatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:04
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US527803A
Cited
US578577A
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US1601118A
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US1780581A
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US2000487A
Cited
US2303273A
Cited
US2507089A
Cited
US2486960A
Cited
US2565715A
Cited
FR1014921A
Cited
US2624316A
Cited
US2604877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |