US3472443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld tip guide and apparatus
Assignee: Air Products and Chemicals Inc
•
Filing: 1966-04-12
•
Granted: 1969-10-14
•
Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert A Holzl
- 👤 William D Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:13
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/002; B23K20/004; B23K20/005; B23K2101/00; B23K2101/36; B23K2101/40; H; H10; H10W; H10W72/00; H10W72/01; H10W72/015; H10W72/01551; H10W72/071; H10W72/0711; H10W72/07141; H10W72/07168; H10W72/075; H10W72/07502; H10W72/07511; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/5524; H10W72/5525; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49162; Y10T29/49169; Y10T29/49194
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |