Patent US2511713A successfully refreshed from Google Patents.
US2511713A
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US
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Engine exhaust snubber and spark arrester
Assignee: Burgess-Manning Co
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Filing: 1948-08-31
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Granted: 1950-06-13
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Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert L Hoyle
- 👤 Arthur P Gallagher
- 👤 Alfred S Chipley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:21
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N3/00; F01N3/02; F01N3/04; F01N3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/21; Y10S55/30
Claims Analysis
Total Claims: 0
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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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |