Patent US2240275A successfully refreshed from Google Patents.
US2240275A
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Highly branched brominated organic acids and their esters
Assignee: Mallinckrodt Chemical Works
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Filing: 1938-09-10
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Granted: 1941-04-29
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Expires: 1958-09-10
Abstract
No abstract record available.
Inventors
- 👤 Frank C Whitmore
- 👤 August H Homeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:08
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C51/00; C07C51/04; C07C51/09; C07C51/15; C07C51/347; C07C51/363; C07C51/377; C07C51/38; C07C51/58; C07C51/60; C07C51/62; C07C53/00; C07C53/15; C07C53/23; C07C55/00; C07C55/32; C07C57/00; C07C57/52; C07C57/58; C07C59/125; C07C59/135
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) | 1944-04-28 | 1944-10-28 | 1945-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-28 | 1948-10-28 | 1949-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-28 | 1952-10-28 | 1953-04-29 | $7700.00 | Window Closed / Lapsed |