US2877527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curtain cord equalizer
Assignee: Levolor Corp
•
Filing: 1954-05-25
•
Granted: 1959-03-17
•
Expires: 1974-05-25
Abstract
No abstract record available.
Inventors
- 👤 Scott R Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:07
CPC Classifications
A; A47; A47H; A47H3/00; A47H3/02; A47H3/08; E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/326; A44; A44C; A44C11/00; A44C11/005; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3987; Y10T403/00; Y10T403/71; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US485415A
Cited
US914768A
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US860189A
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US1371932A
Cited
US1891947A
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US1811704A
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US2090860A
Cited
US2246091A
Cited
US2460488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |