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US2934801A
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Assignee: Individual
•
Filing: 1958-06-16
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Granted: 1960-05-03
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Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Blaszkowski Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/64; E06B3/04; E06B3/06; E06B3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US647379A
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US1800008A
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US1965279A
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DE685222C
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GB512255A
Cited
US2172091A
Cited
US2430873A
Cited
US2700196A
Cited
US2763038A
Cited
US2762475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |