US3452477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exterior sliding window shutters
Assignee: JOHN H SASSANO
•
Filing: 1967-10-06
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Granted: 1969-07-01
•
Expires: 1987-10-06
Abstract
No abstract record available.
Inventors
- 👤 John H Sassano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/04; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609; E06B3/92; E06B3/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US525745A
Cited
FR951918A
Cited
US2716785A
Cited
US2808626A
Cited
US2957211A
Cited
US3241283A
Cited
US3237250A
Cited
US3348603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |