US3469493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: Illinois Tool Works Inc
•
Filing: 1968-02-14
•
Granted: 1969-09-30
•
Expires: 1988-02-14
Abstract
No abstract record available.
Inventors
- 👤 Julian V Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081; Y; Y10; Y10S; Y10S411/00; Y10S411/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2882780A
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US2933794A
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US3127965A
Cited
US3203304A
Cited
GB956098A
Cited
US3118694A
Cited
GB1020694A
Cited
US3334410A
Cited
US3343441A
Cited
US3342098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |