US3468428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular section for rotatable display units
Assignee: BURKE COMMUNICATION INDUSTRIES Inc
•
Filing: 1967-06-20
•
Granted: 1969-09-23
•
Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Reibold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/04; A47F5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1028593A
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US2023047A
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US2388297A
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US2415243A
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US2692689A
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US3007558A
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US3131792A
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US3223449A
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US3371963A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |