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US2623616A
Expired / Lapsed
US
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Memorial marker
Assignee: Individual
•
Filing: 1946-11-22
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Granted: 1952-12-30
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Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Walter M Oertlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:20
CPC Classifications
E; E04; E04H; E04H13/00; E04H13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1345196A
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US1533250A
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US1549428A
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FR648944A
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US1903907A
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US1830836A
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US1982432A
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US2082773A
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US2128294A
Cited
CH221333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |