US3512448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blind fastener
Assignee: Aerpat AG
•
Filing: 1968-12-18
•
Granted: 1970-05-19
•
Expires: 1988-12-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick Arthur Summerlin
- 👤 Harvey Philip Jeal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1293844A
Cited
US1394925A
Cited
GB608218A
Cited
US2762252A
Cited
CH338589A
Cited
CH344832A
Cited
US3171322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |