US3011236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-cord equalizer for venetian blind lift cords
Assignee: Bridgeport Brass Co
•
Filing: 1960-06-01
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Granted: 1961-12-05
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Expires: 1980-06-01
Abstract
No abstract record available.
Inventors
- 👤 Louis J Velia
- 👤 Samuel L Hardcastle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:17
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/324; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |