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US2835017A
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Assignee: C & H Specialties Co
•
Filing: 1950-09-02
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Granted: 1958-05-20
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Expires: 1970-09-02
Abstract
No abstract record available.
Inventors
- 👤 Burkhardt R Hoerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:48
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0014; E; E01; E01C; E01C19/00; E01C19/50; E01C19/502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US354950A
Cited
US670144A
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US1471909A
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US1550276A
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US1811217A
Cited
US2296217A
Cited
US2503733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |