US1519705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloader
Assignee: Ingersoll Rand Co
•
Filing: 1923-11-22
•
Granted: 1924-12-16
•
Expires: 1943-11-22
Abstract
No abstract record available.
Inventors
- 👤 Snowden B Redfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; F04B49/243
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1927-12-16 | 1928-06-16 | 1928-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-12-16 | 1932-06-16 | 1932-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-12-16 | 1936-06-16 | 1936-12-16 | $7700.00 | Window Closed / Lapsed |