US3232573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support bracket
Assignee: PENN CHEM CORP
•
Filing: 1961-11-01
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Granted: 1966-02-01
•
Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Herbert I Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:47
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H01; H01F; H01F27/00; H01F27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR531774A
Cited
US2970798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |