US3528167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for connecting edges of sheet metal
Assignee: Reinhardt Maschinenbau GmbH
•
Filing: 1968-06-13
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Granted: 1970-09-15
•
Expires: 1988-06-13
Abstract
No abstract record available.
Inventors
- 👤 Xaver Lipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/53; Y10T29/53709
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558735A
Cited
US1318415A
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US2056675A
Cited
US2233937A
Cited
US2459585A
Cited
US3183701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |