Patent US3046638A successfully refreshed from Google Patents.
US3046638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing hollow sheetmetal panel structures
Assignee: Individual
•
Filing: 1959-02-11
•
Granted: 1962-07-31
•
Expires: 1979-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jean H Melzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:44
CPC Classifications
B; B21; B21D; B21D47/00; E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; Y; Y10; Y10T; Y10T29/00; Y10T29/18; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49616; Y10T29/49623; Y10T29/49629; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US880820A
Cited
US843726A
Cited
US866140A
Cited
US1762112A
Cited
US2141642A
Cited
US2256812A
Cited
US2481046A
Cited
US2778458A
Cited
US2746139A
Cited
US2878560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |