US3411560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting pleated slat closure
Assignee: AT&T Inc
•
Filing: 1966-03-29
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Granted: 1968-11-19
•
Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Paul T Haury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:59
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/06; E06B9/0607; E06B9/0646; E06B9/0669; E06B3/00; E06B3/32; E06B3/48; E06B3/481; E06B3/483; E06B9/0615; E06B9/0638; E06B9/08; E06B9/11; E06B9/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3273632A
Cited
US1406303A
Cited
GB399337A
Cited
US2423987A
Cited
US2586561A
Cited
US3056451A
Cited
US2954081A
Cited
GB963770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |