US1068721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cutting and welding metals by means of gases.
Assignee: DAVIS-BOURNONVILLE Co
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Filing: 1911-10-30
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Granted: 1913-07-29
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Expires: 1931-10-30
Abstract
No abstract record available.
Inventors
- 👤 John Walter Whitford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:11
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1916-07-28 | 1917-01-27 | 1917-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-07-28 | 1921-01-27 | 1921-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-07-28 | 1925-01-27 | 1925-07-29 | $7700.00 | Window Closed / Lapsed |