US3236407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repair patch assembly
Assignee: GAF Chemicals Corp
•
Filing: 1964-01-30
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Granted: 1966-02-22
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Expires: 1984-01-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Zelman
- 👤 Samuel S Graziano
- 👤 Schlesinger Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
B; B23; B23P; B23P6/00; B23P6/04; F; F16; F16L; F16L55/00; F16L55/16; F16L55/1612; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T29/49735; Y10T29/49739; Y10T29/49741
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2007179A
Cited
US2416548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |