US1757573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making spray guns
Assignee: MATTHEWS W N CORP
•
Filing: 1921-03-07
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Granted: 1930-05-06
•
Expires: 1941-03-07
Abstract
No abstract record available.
Inventors
- 👤 Walter A Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:06
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/0441; B05B7/0475; B05B7/045; B05B7/06; B05B7/062; B05B7/063; B05B7/064; B05B7/066
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) | 1933-05-05 | 1933-11-04 | 1934-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-05-05 | 1937-11-04 | 1938-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-05-05 | 1941-11-04 | 1942-05-06 | $7700.00 | Window Closed / Lapsed |